Requirements of the Switchgear Room

CAUTION
hazard of incorrect dimensions Adhere to the specified spacing dimensions around the switchboard, refer to Table 13. Failure to follow these instructions can result in injury or equipment damage.

Prior to the installation of switchgear cubicles, refer to Civil Engineering Guide (BQT8706400) and make sure that the switchgear room complies with the below requirements:

Observe the minimum distance between the switchgear and the wall of the room.
The load-bearing capacity of the fastening areas must correspond to the weight of the switchgear (perform a stress analysis of the building).
Check base frame (if used) for dimensions and positional tolerances.
Check position of floor openings for MV and LV cables.

NOTE: Observe switchgear-specific space assignment plan, refer to the Ground Plan of a MCSeT Switchgear within a Switchgear Room.

Table 13 Pressure Relief Exhausts and Civil Engineering Utility Space

Pressure relief
Switchboard external exhaust	Switchboard internal exhaust
Tunnel	Tunnel & absorber

Civil engineering with utility space for MCSeT (AFL) with duct	Civil engineering with utility space for MCSeT (AFL) with duct and absorber
Civil engineering with utility space for MCSeT (AFLR) with duct	Civil engineering with utility space for MCSeT (AFLR) with duct and absorber
⁽¹⁾ Minimum dimensions to be complied with when installing the MCSeT switchboard with minimum LV box height of 630 mm. ⁽²⁾ Minimum of 1200 mm cable basement or cable trench depth be maintained. Refer the bending radius of the cable as per the suppliers catalog. ⁽³⁾ Minimum of 1550 mm operating distance should be maintained. ⁽⁴⁾ Minimum of 2500 mm distance is required to extract a withdrawable unit.